Calender construction



c. AIMY ERS. 'CALENDER CONSTRUCTION.

APPLICATION FILED JAN. 3, I921.

Patented Feb. 7, 1922.

3 SHEETSSHEET I .7 I III V V I I I I I x K! i l l C. A. MYERS.

CALENDER CONSTRUCTION.

APPLICATION FILED JAN. 3.1921.

Patented Feb. 7, 1922.

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CALENDER CONSTRUCTION. APPLICATION FILED JAN. 3, 1921.

3 SHEETS-SHEET 3 Patented Feb. 7,

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UNITED STA'ILESJlA'lENT orrlcs.

CARMON A. MYERS, OE AKRON, OHIO, ASSIGNOR TO THE FIRESTONE TIRE LN D RUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

CALEN DER CONSTRUCTION. I

Specification of Letters Patent.

Patented Feb. '7, 1922.

Application filed January 3, 1921. Serial No. 434,423.

shown and described is in the construction of a calender frame for calendering rubber stock and the necessity for ventilation arises both from the heat radiated from the heated .calender rolls and from the gases given off from .the rubber in the calendering operation.

Although my invention is shown in this special embodiment, it is not so limited, but the principles thereof may be used in other connections and relationships. Also the details of construction shown and described may be varied and modifications may be made within the scope of the invention without departing therefrom.

In the drawings accompanying this ap plication, is shown one form of the invention as applied to a ventilating system for calenders, in which- Fig. 1 is a vertical section through the calender showing the means used for exhausting or ventilating it.

Fig. 2 is an enlarged section taken at right angles to Fig. 1, but showing the calender only.

Fig. 3 1s a horizontal section through the calender frame at about its midway point. In the showing of this application many.

of the parts of the conventional or wellknown rubber calender have been omitted, as they are well known in the art, others have been dotted in to show their relationshi to the invention.

he calender frame work com rises two standards of approximately A- ape construction, the legs 2 being hollow to provide passageways 3 for ventilating urposes. Across the upper ends of the stan ards are which are bolted to the framework arou. :l

correspondingly shaped openingsor notches n the top of the standards so that'the castlngs communicate with the hollow legs of the standards. Over the top of the calender and overhanging the top roll is arranged a hood 5 which fits closely within the space between the standards so that all of the hot air and gases arising from the rolls are collected underneath it. The hood fits closely over the top of the trough-shaped castings 4, the upper edges of the castings being provided with notches 6, so that the air and fumes assembled in the hoods may be gathered into the trough-shaped collectors and thence taken into the hollow standards. The notches 6 are shown as somewhat deeper toward the outside of'the trough than toward the inside of the framework, but this arrangement or the location of the apertures may be varied if desired.

The passageways 2 in the standards are placed overpassageways 7 in the foundation which communicate with a duct 8, which is inturn connected with any suitable suction means. of calenders,'if desire By the mechanism shown, the gases which are desired to be removed, are drawn out of the hood through the collectors 4, down the-standards and out through the duct 8.

This provides a convenient and inexpen sive method of ventilating the calender room by drawing off the air and other gases directly at the calender. v

Apertures 9 in the top of the standard, normally closed by covers-10, and apertures llinthe sides of the framework, normally closed by covers '12,'provide means by which the frame may be cleared out periodically to remove the deposits left by the hot gases.

The duct 8 may be common to a row It is obvious that changes and modifications may be made in form or proportions without sacrificing any of the benefits of --for collecting the air under the hood and part of the calender, a trough-shaped collecdelivering it to the interior of the calender tor, extending transversely of the calender,

framework, and suction means connected the sides of said collector being apertured 10 with the interior of the framework. and the ends communicating with the hollow 5 2. In a calender construction, means for framework, and suction means connected ventilatin the calender, comprising a holwith the interior of the framework.

low calen er framework, a hood in the upper CARMON A. MYERS. 

